Leap slam disable in the Boss fight

Leap slam not working when fight begins with Zamir in the maps, after first time i tried it before entering boss room everething works fine, but after i enter in boss room it disable or i just jump in one place not where i pointed, this my mian skill that i use in the boss fihts to run from attacks, i died 3 times and lost map.

Actually happened to me to, it fucked me over really hard. I dont know what disables leap slam in the room.